TC110NB: Polycrystalline growths of complex shapes, with well-defined edges and faces, slightly curved, transparent, very bright and with a very deep and uniform honey-brown color, with small coatings of white rhombohedral Dolomite crystals. This piece comes from some small manual finds that were made in this mine after its closure. There is currently no access to the galleries.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Picos de Europa massif, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 3.4 × 3.2 × 1.6 cm = 1.34” × 1.26” × 0.63”